8. what is the value of the double integral1 dy dx, where r is the triangular region in the xcy-plane with vertices (-2,2),(0,0) and (2,2)p (a) -1 (b) -1 (o e e

8. What is the value of the double integral1 dy dx, where R is the triangular region in the xcy-plane with vertices (-2,2),(0,0) and (2,2)P (a) -1 (b) -1 (o e e (d) e